应用化学 ›› 2024, Vol. 41 ›› Issue (7): 976-986.DOI: 10.19894/j.issn.1000-0518.230402

• 研究论文 • 上一篇    下一篇

金纳米球-氧化石墨烯纳米药物载体的制备及抗癌性能

郭国英1, 赵墨晅1, 梁文婷2, 弓韬1,2(), 董川2()   

  1. 1.山西医科大学生物化学与分子生物学教研室,太原 030001
    2.山西大学环境科学研究所,太原 030006
  • 收稿日期:2023-12-28 接受日期:2024-04-03 出版日期:2024-07-01 发布日期:2024-08-03
  • 通讯作者: 弓韬,董川
  • 基金资助:
    国家自然科学基金(21976113);山西省自然科学基金(202103021224240)

Preparation and Anti‑Cancer Properties of Gold Nanosphere‑Graphene Oxide Nanodrug Carriers

Guo-Ying GUO1, Mo-Xuan ZHAO1, Wen-Ting LIANG2, Tao GONG1,2(), Chuan DONG2()   

  1. 1.Department of Biochemistry and Molecular Biology,Shanxi Medical University,Taiyuan 030001,China
    2.Institute of Environmental Science,Shanxi University,Taiyuan 030006,China
  • Received:2023-12-28 Accepted:2024-04-03 Published:2024-07-01 Online:2024-08-03
  • Contact: Tao GONG,Chuan DONG
  • About author:dc@sxu.edu.cn
    gyt830626@163.com
  • Supported by:
    the National Natural Science Foundation of China(21976113);the Natural Science Foundation of Shanxi Province(202103021224240)

摘要:

采用化学还原法制备了氧化石墨烯-金纳米球(GO-AuNP),利用透射电子显微镜(TEM)、紫外-分光光度计(UV-Vis)和激光粒度仪等对GO-AuNP进行了表征,并利用红外热成像仪对其光热性能进行了研究。 将GO-AuNP负载抗癌药物盐酸阿霉素(DOX)制备成纳米药物复合物(GO-AuNP@DOX),并通过荧光分光光度计对DOX的负载和释放进行了检测; 结果显示,GO-AuNP@DOX中DOX的释放在弱酸性环境下更优,并且在808 nm激光照射条件下pH=5.3时释放量可以达到30.51%。 采用共聚焦显微镜分析了癌细胞对GO-AuNP@DOX的摄取能力; 采用CCK-8细胞毒性实验分析了GO-AuNP@DOX的体外杀伤肿瘤细胞能力,细胞毒性实验证明GO-AuNP载体具备良好的生物相容性,体内抗肿瘤实验结果表明,荷瘤小鼠在化疗-光热协同作用可以很好地抑制肿瘤生长。 结果表明,GO-AuNP纳米药物载体具有光热转换能力优异、生物相容性优良的优点,其pH/近红外光谱(NIR)双重药物控释性能使药物载体在化疗-光热协同治疗肿瘤方面具有潜在的应用价值。

关键词: 金纳米球, 氧化石墨烯, 药物载体, 抗癌

Abstract:

The present study employed a chemical reduction method to synthesize gold nanoparticles (AuNPs) decorated on graphene oxide (GO) nanomaterials. The produced GO-AuNPs were characterized using advanced analytical techniques such as transmission electron microscopy, UV-visible spectrophotometry, and laser particle size analysis. Furthermore, the photothermal properties of GO-AuNPs were investigated using an infrared thermal imaging camera. Subsequently, the GO-AuNPs were utilized for the loading of an anti-cancer drug, doxorubicin hydrochloride (DOX), to yield a nanodrug complex (GO-AuNP@DOX). The loading and release of DOX were determined by fluorescence spectrophotometry, revealing that the DOX release was more favorable under weak acidic conditions. Moreover, it was observed that at pH=5.3, the release amount of DOX reached up to 30.51% under the irradiation of 808 nm laser. The cellular uptake ability of GO-AuNP@DOX by cancer cells was analyzed using confocal microscopy. The in vitro cytotoxicity of GO-AuNP@DOX against tumor cells was evaluated using a CCK-8 cell viability assay, demonstrating the excellent biocompatibility of the GO-AuNP carrier. Additionally, in vivo anti-tumor experiments conducted on tumor-bearing mice revealed that the combination of chemotherapy and photothermal therapy effectively suppressed tumor growth. These results indicate that the GO-AuNP nanodrug carrier possesses outstanding photothermal conversion ability and exceptional biocompatibility, while their pH/NIR dual drug release performance makes it a promising candidate for synergistic chemo-photothermal therapy of tumors.

Key words: Gold nanospheres, Graphene oxide, Drug carrier, Anti-cancer

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